Collapsible pile case or former.



PATENTED AUG. 13 EL.

T. BILYBU & D. HIR'ST COLLAPSIBLE PILE CASE OR FORMER. ,APPLIOATION FILED Nov. a, 190e.

INVENTORS 2 950mg W fowl/gf. mann/Ku@ THOMAS BILYEU AND DAVE HIRSTEL, OF PORTLAND, OREGON.

COLLAPSIBLE PILE ySpecification of Letters Patent.

CASE OR FORMER.

Patented Aug. 13, 1907.

Application filed November 8,1906- Serial No. 342,506.

To all whom 'it may concern:

Be it known that we7 THOMAS BILYEU and DAVE Hins'rnn, citizens of the United States, residing at Portland7 in the county of Multnomah and the State of Oregon, have invented a new and useful Collapsible Pile Case or Former, of which the following is a specification. l

Our invention relates to a collapsible pile case or former so arranged that when said case or former has been driven the core may be removed and the case becomes less in circumference therefore making it possible to withdraw the pile case.

The objects of our improvements are first :-to have a case into which a rigid core is placed but the case being collapsible when the core has been removed. Second to have the point and core all so connected that when the core is removed the point will come also thus leaving the bottom of the case open thus permitting the concrete to be poured in and as the core case is removed the hole may be filled with the concrete. Third: to have a case that is so designed for use where it is desired to drive piles along the water front that the concrete may be incased while the concrete is hardening but when it has hardened it may be removed, and used again.

W'e attain these objects by the mechanism illustrated in the accompanying drawings in which Figure 1. is the bottom view of the outer case that is to be used when it is desired to drive piles or set the concrete piles along the water iront and the pile is to project above the surface of the ground and will at the same time be surrounded by the water for some distance. 1t also shows method of clamping it when it has been placed around the inner case. Fig. 2. is a top view of the same case and also shows the method of clamping the outer case. Fig. 3. is a side and end view of the clamp that is to be used in drawing the outer case together when it has been placed around the inner case before the concrete has been poured in. Fig. 4. is a side view of the outer case and is made with the side toward the operator on to which the clamp is to be placed. Fig. 5. is a cross section through the point just in front of the center line and shows the method of construction of the same. Fig. 6. is a side view of the entire pile case or former with the outer case removed it also shows a cross section through the pile case or former and shows the method of constructing the core. Fig. 7 is a side view of the pile case or former and shows the outer case in place, it also shows a partial cross section through the pile case or former showing the hinged mechanism on the back side of the case.

Similar letters refer to similar parts throughout the several views:

The case proper is made in two parts as shown at 1 and 2. They are held apart at the back by a series of hinges as shown at 3 and 4 with a rod between them i as shown at 5. This rod runs the full length of the pile case. On the side opposite from the hinged side is a fastening that holds the case from spreading and makes it all the more rigid while being driven. 6 shows the bar that is so placed and shows the form of the same. It is riveted to case 1 as shown at 7 and is bent to fit the offset as shown at 15. A rivet 9 connects case 1 with plate 6 and has a small cylinder between them on the rivets which is longer than the thickness of plate of case 2 so that when the case is ina strain it is impossible for it to bind; this cylinder 10 will operate in the slot 8 so that when the core is removed the case 1 and 2 will collapse by slot 8 because of the passage of cylinder 10 in slot 8.

11 and 12 are two beams running the full length of the case or former and they in conjunction with four angles constitute the core frame they being held together by l means of rivets.

14 is the point which is fastened to the core so that when the core is removed the point will be removed also.

16 is a slope or contraction that is made on the lower end of the case 1 and 2 and is made to conform as nearly as possible tothe curve of the point 14.

14 is the upper end of the point and is made in such a manner that the beams 11 and 12 may run down into the point in such a manner. that rivets. may be placed through the two as shown at 17 where these pass through the beams 11 and 12 there is a slot 1S. This is for the purpose of allowing a small amount of play therefore when the concussion of the hammer is thrown upon the core it is not transmitted to the rivets -but directly to the point from the end of the beams.

19 is a small strip that is placed at the bottom and fills the space between case 1 and plate 6 and runs up for a short distance as shown. 19 is fastened by means of rivets to part 1.

20 is the outside casing or sheath and is to be used wherever the piles are to protrude above the ground as along the water front or similar pla-ces.

21 is the female part of the clamp and is fastened directly to casing 20.

22 is the male part of the clamp and when it is placed on the casing 2O and in mesh with 21 holds the case together and solid. This permits the removal of the inner case or former7 and still holds the concrete within the outer casing Then when the concrete has hardened the cla-mp 22 may be removed from the casing or sheath 2O and this in turn removed from the pile.

We wish to make the following claims for our coll lapsible pile case or former 1. A collapsible pile case or former consisting of sections hinged together at meetingr edges and means at their oppo` site edges to prevent undue expansion while being driven and permitting contraction upon the removal of :i driving' core.

2. I-n a device of the class described, a removable core combining beams secured together by angle irons united to their webs, and having a point upon which the lower ends ot' said beams rest, and to which they are secured by bolts through elongated openings in one of said parts, whereby the force of the driving blow is received by the point and not by the securing bolts.

3. A collapsible casing for pile cores composed of sections pivotally connected at adjacent edges, and a connection between the opposite edge portions of the casing per` mitting of limited movement thereof and embodying antifriction means facilitating free movement of said portions.

4. In a device of the class described, the combination of a casing, a removable core in said casing, a solid driving point, and a plurality of vertical pin and slot connections between the point and drivingI core and permitting,r relative slidable movement of the core and point in alinement with one another.

5. In a device of the class described, the combination o1 a core, a driving point, and an outer casing embodying free longitudinal edge portions, having flange members thereon arranged in diverging relation, and a tapering locking member cooperating with the tiange members by a wedging l action to secure the free edge portions of the casing together.

6. In a device of the class described, the combination of a casing, a removable core in said casing, a drivingr point i at the lower end of the core, and means connecting the point to the core permitting of relative slidable movement of these members in alinement, so that the effect of the driving blow on the core is received by the point and 'not the connecting means.

'i'. In a device of the class described, the combination of a casing provided with an opening at its lower end and having that portion of its body surrounding such opening conti-acted, a driving point therefor projecting through the opening aforesaid and having' a Wedging connection with said casing at the contracted portion above mentioned, and a removable core in the casing loosely connected with the driving point.

THOMAS BILYEU. DAVE HIRSTEL. Witnesses:

EARL A. MARSHALL, I. A. YEREX. 

